actually a really cool idea. i was having a fun time exploring the subway's ever-changing halls. a couple of issues though:
the game lags exponentially as each train pulls into a map, given the player is looking in the direction of where it spawned.
taking the train from 3rd W causes the train to stop in an empty map. it opens its doors, closes, and takes off. it never loads the next map. you're stuck on it forever lol.
PLEASE keep working on this. it's a genuinely fun and perplexing idea! i would love to play this game in a more playable state. :]